Tus sau: Yamin Li thiab Houcheng Liu, thiab lwm yam, los ntawm kev kawm qib siab ntawm horticulture, South Suav teb

Tsab ntawv: Tsev cog khoom Horticulture

Cov hom chaw horticulture cov chaw tsuas yog suav nrog cov hnab ntsuab yas, hnub ci ntsuab, thiab cov khoom cog ntoo ntau, thiab cov ntoo cog qoob loo. Vim hais tias cov vaj tse lub vaj tse thaiv cov teeb pom kev zoo rau qee yam, muaj tsis txaus sab hauv lub teeb, uas nyeg txo cov qoob loo ntawm cov qoob loo thiab ua tau zoo. Yog li no, lub teeb ntxiv ua si lub luag haujlwm tseem ceeb hauv qhov chaw muaj txiaj ntsig zoo thiab muaj txiaj ntsig zoo hauv kev nce hluav taws xob thiab cov nqi khiav haujlwm hauv lub chaw.

Tau ntev heev, khoom siv khoom siv khoom siv nyob rau hauv thaj chaw horticulture mas suav lub teeb ua fluor, cov khoom siv hluav taws xob muaj zog thiab kev ua haujlwm siab. Kev txhim kho ntawm lub cim tshiab teeb moos tau Diode (LED) ua rau nws siv tau cov khoom siv hluav taws xob tsis muaj zog tsawg hauv thaj chaw ua haujlwm horticulture. LED muaj qhov zoo ntawm cov photicelectric hloov zuj zus kev ua tau zoo, DC lub zog, lub neej me, muaj nthwv dej thiab kev tiv thaiv tsis muaj kev tiv thaiv. Piv nrog lub siab-siab sodium teeb tau siv tam sim no, LED tsis tuaj yeem kho cov kev loj hlob ntawm cov nroj tsuag) raws li kev xav tau ntawm cov nroj tsuag ntawm qhov chaw nyob ze rau nws lub teeb txias, yog li, tus naj npawb ntawm kev siv cov txheej txheem thiab chaw siv hluav taws xob, kev tiv thaiv ib puag ncig uas tsis tuaj yeem hloov los ntawm kev teeb tsa lub teeb ci tuaj yeem yog pom tau.

Raws li cov kev zoo no, LED tau ua tiav zoo nyob rau hauv kev txhim kho teeb tsa Nyob rau hauv xyoo tsis ntev los no, kev ua yeeb yam ntawm LED loj hlob teeb pom kev zoo, thiab txhua yam khoom siv nrog cov khoom siv sib txawv, yog li nws daim ntawv thov hauv kev ua liaj ua teb thiab biology yuav dav.

Kab lus no piav qhia cov xwm txheej ntawm LED hauv tshav puam kev ua kom pom kev zoo, cov khoom noj muaj teeb meem ntawm LED ntawm lub teeb mis, thiab kev tshuaj xyuas thiab cov kev cia siab ntawm cov teeb meem tam sim no thiab cov kev cia siab ntawm LED txhawb lub teeb kev thev naus laus zis.

Cov nyhuv ntawm LED protulaary lub teeb ntawm kev loj hlob ntawm horticultural qoob loo

Cov kev tswj hwm kev cuam tshuam ntawm lub teeb rau cov nroj tsuag kev loj hlob thiab kev loj hlob muaj xws li cov noob germination, nplooj ntoos elongation, postophylal synthesis thiab decomposition, thiab paj induction. Lub teeb pom kev zoo ib puag ncig hauv qhov chaw suav nrog lub teeb siv lub teeb, lub teeb ci lub teeb ci thiab faib tawm. Cov ntsiab lus tuaj yeem hloov kho los ntawm cov khoom siv dag hluav taws xob ntxiv yam tsis muaj kev txwv ntawm huab cua huab cua.

Tam sim no, muaj tsawg kawg yog peb hom photoreceptors hauv cov nroj tsuag: phytochrome (nqus xiav lub teeb thiab nyob ze ultraviolet lub teeb) thiab UV-A thiab UV-B. Kev siv ntawm kev yoj lub teeb pom kev rau cov qoob loo rau Irradiatoriat cuam tshuam, nrawm lub teeb morphogenesis, thiab txhawb txoj kev loj hlob thiab kev loj hlob ntawm cov nroj tsuag. Lub teeb liab liab (610 ~ 720 nm) thiab xiav violet teeb (400 ~ 510 nm) tau siv hauv cog duab partynthesis. Siv LED Tshuab, Monochromatic Lub Teeb (xws li lub teeb liab nrog 660nm ncov, thiab lwm yam) muaj peev xwm nqus tau dav yog tsuas yog 20 nm.

Tam sim no ntseeg tias lub teeb liab-kab ntxwv yuav cuam tshuam ntawm cov khoom siv kom qhuav, ua rau cov nroj tsuag ntawm cov pob zeb thiab lwm cov txiv hmab txiv ntoo ua ntej, thiab ua si lub luag haujlwm hauv cov nroj tsuag txhim kho tau; Xiav thiab violet lub teeb tuaj yeem tswj cov phototropism ntawm cov nroj tsuag nplooj, txhawb nqa cov khoom siv ntev, thiab txhawb nqa cov kev loj hlob ntawm cov plab hauv plab; Kev sib xyaw ntawm cov xim liab thiab xiav tuaj yeem them nyiaj rau lub teeb tsis txaus ntawm ob qho xim ntawm ob thiab yog qhov tseem ceeb nrog qoob loo peptynthesis thiab morphology. Lub teeb hluav taws xob siv hluav taws xob siv tau tuaj yeem ncav cuag 80% mus rau 90%, thiab lub zog txuag hluav taws xob yog qhov tseem ceeb.

Nruab nrog LED cov teeb txhawb nqa rau hauv chaw ua haujlwm horticulture tuaj yeem ua tiav qhov tseem ceeb tshaj plaws hauv kev tsim khoom. Cov kev tshawb fawb tau pom tias cov txiv hmab txiv ntoo, tag nrho cov zis thiab cov tub rog ua haujlwm thiab ua haujlwm rau 12h (8: 00) yog qhov tseem ceeb nce. Cov teeb txhawb ntxiv ntawm lub led sawb tau nce los ntawm 42.67%, 66.89% thiab 16.91%, 9,86% feem. Lub LED ntxiv Lub Teeb Ntawm LED loj hlob teeb pom kev zoo fixture thaum lub sij hawm muaj teeb meem tag nrho [: 2, thiab lub teeb ci ntsa iab yog 300 μmol / (lab) Cov txiv ntoo zoo thiab ua tau zoo rau ib cheeb tsam ntawm chiehwa thiab eggplant. CHIKUATAN nce los ntawm 5.3% thiab 15.6%, thiab eggplant nce los ntawm 7.6% thiab 7.8%. Los ntawm LED lub teeb zoo thiab nws siv thiab ntev ntawm tag nrho cov khoom lag luam muaj peev xwm txhim kho, cov khoom noj khoom haus muaj txiaj ntsig zoo, cov khoom noj muaj txiaj ntsig zoo, kev ua haujlwm zoo, txuag hluav taws xob thiab txuag lub zog thiab Cov neeg txawj ntse tsim ntawm chaw horticultural cov qoob loo tuaj yeem pom tau.

Daim ntawv thov ntawm LED ntxiv lub teeb nyob rau hauv zaub yub nceb

Kev tswj cov nroj tsuag morphology thiab kev loj hlob thiab kev loj hlob los ntawm kev loj hlob los ntawm kev siv tshuab tseem ceeb hauv lub tsev cog khoom sau qoob. Cov nroj tsuag ntau dua tuaj yeem nkag siab thiab tau txais lub teeb pom kev los ntawm phyoreceptor, thiab ua morporeceprome, thiab ua morporecrome, thiab ua morporechrome, thiab ua morporecrome, thiab ua morporecrome, thiab ua morporecrome, thiab ua morporechrome, thiab ua morporecrome kev hloov pauv los tswj cov ntaub so ntswg thiab cov plab hnyuv siab raum, thiab ua morporecrome Photomorphogenesis txhais tau tias cov nroj tsuag cia siab rau kev tswj hwm ntawm cov nqaij sib txawv, kev txhawb nqa ntawm alteral kev loj hlob, kev sib tw elongation , thiab tropism.

Zaub yub cog qoob yog ib qho tseem ceeb ntawm kev ua liaj ua teb. Nrov los nag rau huab cua yuav ua rau cov zaub tsis txaus nyob hauv qhov chaw, thiab thaum kawg kev loj hlob, thiab thaum kawg cuam tshuam lawv cov txiaj ntsig thiab cov txiaj ntsig zoo. Hauv kev tsim khoom, qee tsob ntoo kev loj hlob regulators, xws li gibberellin, auxin, paclobrazol thiab chlormurantat, siv los tswj kev loj hlob ntawm cov noob. Txawm li cas los xij, cov kev siv tsis tau ntawm cov nroj tsuag kev loj hlob tuaj yeem yooj yim ua rau ib puag ncig ntawm zaub thiab chaw, tib neeg kev noj qab haus huv yog tsis muaj.

LED Produlaary lub teeb muaj ntau yam tshwj xeeb ntawm lub teeb ntxiv, thiab nws yog txoj hauv kev los siv LED ntxiv lub teeb los tsa cov seedlings. Nyob rau hauv lub LED ntxiv Lub Teeb [25 ± 5 μmol / (NHORNTONT], nws pom tias lub teeb qis dua [0 ~ 35 μmol / (m²²²² of Dib seedlings. Lub teeb liab thiab lub teeb xiav inhibit yub kev loj hlob. Piv nrog ntuj tsis muaj zog, lub zog yub ntawm cov noob ntxiv nrog liab thiab xiav lub teeb nce los ntawm 151.26% thiab 237%, feem. Piv nrog monochromatic lub teeb ua tau zoo, qhov ntsuas ntawm cov khoom siv muaj zog uas muaj cov tshuaj pleev xim liab thiab xiav ntawm kev kho cov teeb pom kev zoo nce los ntawm 304.46%.

Ntxiv lub teeb liab rau dib cov seedlings tuaj yeem nce cov nplooj tseeb, cov cag ntoo uas muaj zog, solub cov ntsiab lus ntawm dib cov noob ntoo. Ntxiv UV-B tuaj yeem nce cov ntsiab lus ntawm chlorophyll a, chlorophyll B thiab Carotenoids hauv dib cov nplooj. Piv nrog ntuj lub teeb, ntxiv rau lub teeb liab thiab xiav LED LED tau nce cov nplooj, ua kom qhuav seedling index ntawm lws suav seedlings. Ntxiv rau LED liab lub teeb thiab lub teeb ntsuab loj nce qhov siab thiab qia tuab ntawm lws suav seedlings. LED Ntsuab Lub Teeb Khoom Siv Lub Teeb Muaj peev xwm nce ntxiv ntawm cov yub ntsuab thiab cov txiv lws suav thiab cov kua tuab thiab cov noob tuab ntawm cov txiv lws suav Seedlings txhua tus ua raws lub teeb ntsuab ntxiv. Qhov nce nyob rau hauv lub zog nce. Kev sib xyaw ntawm LED liab thiab xiav lub teeb tuaj yeem nce cov qia thickness, qhov hnyav ntawm tag nrho cov nroj tsuag, lub hauv paus kom tua tau, thiab muaj zog seedling qhov ntsuas ntawm eggplant. Piv nrog lub teeb dawb, coj liab lub teeb tuaj yeem nce biomitass seedlings thiab txhawb nqa txoj kev loj hlob elongation thiab nplooj nthuav ntawm cov tsiaj cog qoob loo. LED xiav lub teeb txhawb nqa txoj kev loj hlob tuab, ua kom muaj zog tawg tag nrho ntawm cov zaub qhwv noob, thiab ua rau cov zaub qhwv noob dwarf. Cov txiaj ntsig saum toj no qhia tau tias qhov zoo ntawm zaub cog qoob loo nrog lub teeb kev cai thev naus laus zis thev naus laus zis thev naus laus zis yog pom tseeb.

Cov nyhuv ntawm LED protulleary lub teeb ntawm kev noj haus zoo ntawm cov txiv hmab txiv ntoo thiab zaub

Cov protein, qab zib, organic acid thiab cov vitamins muaj cov txiv hmab txiv ntoo thiab zaub yog cov khoom noj khoom haus zoo rau tib neeg kev noj qab haus huv. Lub teeb pom kev zoo tuaj yeem cuam tshuam rau VC cov ntsiab lus hauv kev tswj cov kev ua si ntawm vc cov khoom siv protein thiab decbohydrate ntau ntxiv hauv cov nroj tsuag horticultural. Lub teeb liab txhawb nqa cov carbohydrate ntau lawm, xiav kev kho mob tau txais txiaj ntsig zoo rau cov zaub mov zoo tau ntau dua li ntawm monochromatic lub teeb.

Ntxiv cov xim liab lossis xiav LED lub teeb tuaj yeem txo cov ntsiab lus nwj thiab ntsuab ntsuab teeb pom kev sib txuam nrog kev tsub zuj zus ntawm VC hauv zaub xas lav. Cov txiaj ntsig tau pom tias cov kev nthuav dav ntawm lub teeb xiav tuaj yeem txhim kho VC cov ntsiab lus thiab soluble protein cov ntsiab lus ntawm lws suav; Lub teeb liab thiab xiav xiav ua ke lub teeb yuav tuaj yeem txhawb cov suab thaj thiab cov suab thaj rau cov kua qaub ntau tshaj plaws; Liab xiav ua ke lub teeb tuaj yeem txhim kho VC cov ntsiab lus ntawm dib txiv hmab txiv ntoo.

Cov phenols, flavonoids, anthocyanins thiab lwm yam tshuaj hauv txiv hmab txiv ntoo thiab zaub tsis muaj txiaj ntsig lossis tshem tawm cov txiv neej muaj txiaj ntsig lossis tshem tawm cov dawb radicals hauv tib neeg lub cev.

Siv LED xiav lub teeb rau cov teeb ci ntxiv tuaj yeem ua kom lub teeb liab thiab lub teeb ci ci tuaj yeem nce cov ntsiab lus ntawm flavonoids thiab tag nrho cov phenols. Lub teeb xiav tuaj yeem txhawb kev sib txuam ntawm lycopene, flavonoids thiab anystocyanins hauv cov txiv lws suav txiv lws suav. Kev sib xyaw ntawm liab thiab xiav lub teeb txhawb nqa cov khoom ntawm anthocyanins rau qee yam, tab sis inhibits cov synthesis ntawm flavonoids. Piv nrog dawb lub teeb kev kho, kev kho teeb liab tau nce ntxiv rau anthocyanin cov ntsiab lus ntawm kev kho lub teeb ci, tab sis lub teeb xiav kev kho mob muaj cov ntsiab lus qis tshaj plaws. Tag nrho cov ntsiab lus phenol ntawm nplooj ntsuab ntsuab, nplooj nplooj liab thiab xim liab, tab sis nws yog qis tshaj plaws kev kho teeb. Ntxiv rau LED ultraviolet teeb lossis lub teeb txiv kab ntxwv tuaj yeem nce cov ntsiab lus pheeb nrho cov ntsiab lus hauv cov ntsiab lus ntsuab tuaj yeem nce cov ntsiab lus ntawm anthocyanins. Yog li ntawd, kev siv LED loj hlob lub teeb yog ib txoj hauv kev zoo los tswj cov khoom noj zoo ntawm cov txiv hmab txiv ntoo thiab zaub hauv horticultural cog qoob loo.

Cov nyhuv ntawm LED protulaary teeb rau ntawm kev tiv thaiv kev laus ntawm cov nroj tsuag

Chlorophyllration, cov protein sai sai thiab siv ntau hydrolysis thaum tsob ntoo ua kom pom tseeb feem ntau yog pom tias yog nplooj sencesc. Chloroplasts yog rhiab heev rau kev hloov pauv ntawm qhov chaw nyob sab nraud, tshwj xeeb tshaj yog cuam tshuam los ntawm lub teeb zoo. Lub teeb liab, lub teeb xiav thiab liab-xiav ua ke lub teeb ci ntsa iab hauv chloropive morphogenesis, xiav lub teeb pom kev zoo rau chloroplast kev loj hlob. Kev sib xyaw ua ke ntawm lub teeb xiav thiab lub teeb liab thiab xiav tuaj yeem txhawb nqa cov khoom siv liab thiab xiav kuj tseem tuaj yeem ncua kev ua raws li nplooj chlorophyll cov ntsiab lus hauv qab theem tom qab. Cov nyhuv no yog pom tseeb dua nrog cov txo qis ntawm lub teeb liab piv thiab nce ntawm lub teeb xiav. Cov chlorophyl cov ntsiab lus ntawm dib cov noob hauv qab LED Liab thiab xiav ua ke lub teeb thiab cov xim liab thiab cov kev kho mob liab. LED xiav lub teeb tuaj yeem nce cov chlorophyll a / b tus nqi ntawm wutacai thiab ntsuab qej seedlings.

Thaum senescence, muaj cytokinins (CTK), auxin (IAA), abscisic acid cov ntsiab lus hloov (ABA) thiab muaj ntau yam kev hloov pauv hauv enzyme kev ua. Cov ntsiab lus ntawm cov nroj tsuag cov tshuaj hormones tau yooj yim cuam tshuam los ntawm qhov chaw taws teeb. Cov kev sib txawv sib txawv muaj cov kev tswj hwm sib txawv ntawm cov tshuaj hormones cog, thiab thawj kauj ruam ntawm lub teeb liab teeb liab Transduction Transduction cytokinins.

CTK txhawb nqa kev nthuav dav ntawm cov nplooj hlav hlwb, txhim kho cov haujlwm ntawm nuconucenase, thiab qeeb, yog li nws tuaj yeem ncua nplooj ntoos. Muaj kev sib cuam tshuam ntawm lub teeb thiab CTK-kev sib koom ua hluav taws xob kev sib koom ua ke, thiab lub teeb tuaj yeem txhawb qhov nce ntawm endokinin qib. Thaum cov ntaub so ntswg muaj nyob hauv lub xeev ntawm senescence, lawv endodous cytokinin cov ntsiab lus txo qis.

IAA yog feem ntau yog concentrated nyob rau hauv feem ntawm kev loj hlob loj heev, thiab muaj cov ntsiab lus me me nyob rau hauv kev laus cov ntaub so ntswg lossis plab hnyuv siab raum. Violet lub teeb tuaj yeem nce cov haujlwm ntawm indole acet acids acid oiidase, thiab tsawg iaa qib tuaj yeem inhibit lub elongation thiab kev loj hlob ntawm cov nroj tsuag.

ABA feem ntau yog tsim nyob rau hauv cov ntaub so ntswg sedescentes, paub qab zib, noob, qia, keeb kwm thiab lwm qhov chaw. Lub Aba cov ntsiab lus ntawm dib thiab cabbage nyob rau hauv kev sib xyaw ua ke ntawm liab thiab xiav lub teeb yog qis dua li ntawm lub teeb dawb thiab lub teeb xiav.

Peroxidase (pod), Superoxide dismutase (sod), ascorbate peroxidase (apx), catalase catalase (miv) yog qhov tseem ceeb dua thiab cov khoom muaj teeb meem tseem ceeb dua thiab pom kev sib xyaw rau cov nroj tsuag. Yog tias muaj hnub nyoog nroj tsuag, cov haujlwm ntawm cov enzymes no yuav poob nrawm.

Cov peev txheej sib txawv muaj qhov cuam tshuam tseem ceeb ntawm kev cog tsob nroj antioxidant enzyme. Tom qab 9 hnub ntawm kev kho teeb liab liab, cov apx ua ntawm cov neeg raug txhom tsoob nce ntau, thiab cov pod ub no txo ​​qis. Lub pod ua si ntawm lws suav tom qab 15 hnub ntawm lub teeb liab thiab lub teeb xiav tau siab tshaj li ntawm lub teeb dawb ntawm 20.9% thiab 11.7%, feem. Tom qab 20 hnub ntawm kev kho lub teeb ntsuab, cov pod ua ntawm lws suav yog qhov qis tshaj, tsuas yog 55.4% ntawm lub teeb dawb. Ntxiv rau 4H xiav lub teeb muaj peev xwm nce ntxiv cov soluble protein cov ntsiab lus, cov dej num miv, thiab miv enzyme nyob rau hauv nplooj dib ntawm stastling theem. Ib qho ntxiv, cov haujlwm ntawm sod thiab apx maj txo nrog lub caij nyoog ntawm lub teeb. Qhov kev ua si ntawm cov dej thiab apx nyob rau hauv lub teeb xiav thiab liab txo qis qeeb tab sis yog ib txwm siab tshaj li ntawm lub teeb dawb. Lub teeb liab irradiation tseem ceeb txo qis peroxidase thiab Iaa Perafobase cov haujlwm ntawm lws suav tawm thiab iaa peroxidase kev ua si, tab sis tshwm sim rau Peroxidase kev ua si, tab sis tshwm sim rau Peroxidase kev ua si, tab sis tshwm sim rau Peroxidase kev ua si, tab sis tshwm sim rau Peroxidase kev ua si, tab sis tshwm sim rau Peroxidase kev ua si, tab sis tshwm sim rau Peroxidase kev ua si, tab sis tshwm sim rau Peroxidase kev ua si, tab sis tshwm sim rau Peroxidase kev ua si, tab sis tshwm sim rau Peroxidase kev ua si, tab sis tshwm sim rau Peroxidase kev ua si, tab sis tshwm sim rau Peroxidase kev ua si, tab sis tshwm sim rau Peroxidase kev ua si, tab sis tshwm sim rau Peroxidase kev ua si ntawm eggplase kev ua si kom nce ntxiv. Yog li ntawd, tau txais ib qho kev tsim nyog coj tus coj lub teeb ntxiv tuaj yeem ua rau muaj kev ua kom senances ntawm horticultural cog thiab txhim kho cov txiaj ntsig thiab ua kom zoo.

Kev tsim kho thiab ntawv thov ntawm LED Lub Teeb Mis

Kev loj hlob thiab kev loj hlob ntawm cov nroj tsuag muaj cuam tshuam los ntawm lub teeb zoo thiab nws cov sib piv sib txawv. Lub teeb mis nyuj mas tsuas yog suav nrog ntau lub ntsiab xws li lub teeb pom kev zoo, lub teeb siv, thiab lub teeb sijhawm. Txij li cov nroj tsuag sib txawv muaj cov kev sib txawv rau lub teeb thiab kev loj hlob txawv, lub teeb siv kev sib txawv thiab lub teeb ntxiv rau cov qoob loo cog qoob loo.

 ◆Lub teeb Spectrum piv

Piv nrog lub teeb dawb thiab lub teeb liab thiab xiav, kev sib xyaw ua ke ntawm LED liab thiab xiav kom zoo dua ntawm kev loj hlob thiab cov zaub pob ntawm cov noob.

Thaum qhov sib piv ntawm xim liab thiab xiav yog 8: 2, qhov hnyav qia, thiab nws muaj txiaj ntsig zoo, thiab nws tseem muaj txiaj ntsig zoo rau kev tsim cov tshuaj chloroplast matrix thiab Basal lamella thiab cov zis ntawm assimilation teeb meem.

Kev siv ntawm kev sib xyaw ntawm cov xim liab, ntsuab thiab xiav xiav rau cov taum liab, thiab lub teeb ntsuab tuaj yeem txhawb nqa cov teeb meem ua kom qhuav ntawm cov taum liab. Txoj kev loj hlob yog qhov pom tseeb tshaj plaws thaum pom cov xim liab, ntsuab thiab xiav yog 6: 2: 1. Lub Taum Liab Sprougling zaub Hypocotyl elongation nyhuv yog qhov zoo tshaj plaws nyob rau hauv lub liab thiab xiav lub teeb ratio ntawm 6: 3, tab sis soluble protein Cov ntsiab lus yog qhov siab tshaj plaws.

Thaum qhov sib piv ntawm xim liab thiab xiav yog 8: 1 rau loofah seedlings, lub zog yub cov ntsiab lus ntawm loofah seedlings yog qhov siab tshaj plaws. Thaum siv lub teeb pom kev zoo nrog qhov piv ntawm liab thiab xiav ntawm 6: 3, chlorophyl cov ntsiab lus, thiab cov soluble protein cov ntsiab lus ntawm loofah seedlings yog qhov siab tshaj plaws.

Thaum siv 3: 1 piv ntawm liab thiab xiav lub teeb rau celery Nyob rau hauv lws suav sau qoob, nce lub teeb xiav lub teeb txhawb kev tsim ntawm Lycopene, pub dawb cov khoom siv liab txhawb nqa kev tsim ntawm Sentratable Acids. Thaum lub teeb nrog qhov piv ntawm liab thiab xiav lub teeb rau zaub ntsuab yog 8: 1, nws zoo txo ​​cov ntsiab lus ntawm nitrate thiab nce cov ntsiab lus ntawm vc.

 ◆Lub teeb siv

Nroj tsuag cog raws li lub teeb tsis muaj zog yog cov raug rau kev yees duab rau kev yees duab. Net Photosynthetic tus nqi ntawm lws suav searse nce nrog kev nce ntawm lub teeb siv kev siv lub teeb rau kev nce thiab tom qab ntawd tsawg zuj zus, thiab ntawm 300μmol / (m² S, kom ncav cuag qhov siab tshaj plaws. Cov nroj tsuag qhov siab, nplooj ntoos thaj tsam, cov ntsiab lus dej thiab VC cov ntsiab lus ntawm cov zaub xas lav tau ntau dua li ntawm 150μmol / (m²²² agent siv. Hauv qab 200μmol / (NWNAs lub teeb kev siv zog, qhov hnyav tag nrho, nce ntxiv, thiab nyob rau hauv kev kho cov amino acids, thiab nyob hauv thaj chaw dawb, thiab thaj chaw nplooj, cov ntsiab lus dej , chlorophyll a, chlorophyll a + b thiab carotenoids ntawm zaub xas lav tau poob qis. Piv nrog kev tsaus ntuj, nrog kev nce ntawm LED loj hlob lub teeb siv zog [3, 9 · Lub VC cov ntsiab lus yog qhov siab tshaj plaws ntawm 3μmol / (NAUG SY), thiab soluble protein, soluble qab zib thiab cov ncauj lus soluble yog qhov siab tshaj ntawm 9μmol / (NHNON. Raws li tib yam kub tshwm sim, nrog kev nce ntawm lub teeb siv zog [(2 ~ 2.5) lx × 103 lx, (6 ~ 6.5), lub sijhawm yub ntawm kua txob yog luv, cov ntsiab lus ntawm cov qab zib soluble nce, tab sis cov ntsiab lus ntawm chlorophyll a thiab carotenoids maj mam poob qis.

 ◆Lub sijhawm teeb

Lub sijhawm muaj peev xwm ua kom lub sijhawm muaj teeb meem tsis muaj teeb meem, pab ua kom muaj kev sib txuam ntawm cov qoob loo ntawm kev cog qoob loo, thiab ua tiav cov nyhuv ntawm kev ua kom tiav thiab txhim kho kom zoo. The VC content of sprouts showed a gradually increasing trend with the prolongation of light time (0, 4, 8, 12, 16, 20h/day), while the free amino acid content, SOD and CAT activities all showed a decreasing trend. Nrog rau lub caij nyoog ntawm lub sij hawm lub sij hawm (12, 15h), qhov hnyav ntawm cov nroj tsuag hauv Suav teb tau nce ntau. Cov ntsiab lus ntawm VC nyob rau hauv nplooj thiab stalks ntawm Suav cabbage yog qhov siab tshaj plaws ntawm 15 thiab 12h, feem. Cov soluble protein cov ntsiab lus ntawm nplooj ntawm Suav cabbage txo maj, tab sis cov stalks tau siab tshaj plaws tom qab 15H. Lub soluble qab zib cov ntsiab lus ntawm Suav cabbage tawm maj mam nce, thaum lub stalks tau ntau tshaj ntawm 12H. Thaum qhov sib piv ntawm xim liab thiab xiav yog 1: 2, piv nrog 12h lub teeb kev kho kom txo cov nplooj ntoos ntau, tab sis thaum lub teeb liab thiab xiav xiav yog 2: 1, Qhov kev kho mob 20H lub teeb tau nce ntxiv cov ntsiab lus ntawm tag nrho cov phenols thiab flavonoids nyob rau hauv nplooj lwg ntsuab.

Los ntawm cov saum toj no, nws tuaj yeem pom tias cov teeb pom kev sib txawv muaj cov kev sib txawv ntawm photosynthesis thiab carbon thiab nitrogen metabolism ntawm cov qoob loo sib txawv. Yuav ua li cas thiaj li tau txais cov teeb pom kev zoo tshaj plaws, lub qhov hluav taws xob kev tswj hwm tau cog lus raws li qhov pib kev tswj hwm ntawm cov khoom lag luam uas pib, thiab cov hom phiaj ntau lawm, thiab lwm yam, Yuav kom ua tiav lub hom phiaj ntawm kev txawj ntse ntawm lub teeb pom kev zoo thiab kev ua tau zoo thiab siab-qoob loo cog qoob loo nyob rau hauv lub zog-txuag kev mob.

Cov teeb meem uas twb muaj lawm thiab kev cia siab

Qhov tseem ceeb tseem ceeb ntawm LED loj hlob lub teeb yog tias nws tuaj yeem ua cov kev xav tau zoo raws li qhov xav tau ntawm Photosyynthetic yam ntxwv, morphology, zoo thiab tawm ntawm cov nroj tsuag sib txawv. Ntau hom ntawm cov qoob loo thiab kev loj hlob txawv ntawm tib cov qoob loo txhua tus muaj cov sib txawv rau lub teeb pom kev zoo, lub teeb siv thiab cov ntawv sau. Qhov no yuav tsum muaj kev txhim kho txuas ntxiv thiab txhim kho cov qauv kev tshawb fawb los ua ib lub teeb loj loj ntawm cov ntaub ntawv. Ua ke nrog kev tshawb fawb thiab kev txhim kho ntawm cov teeb meem kev ua haujlwm, yog li ua kom txuag tau zoo thiab muaj txiaj ntsig kev lag luam. Daim ntawv thov ntawm Led loj hlob lub teeb nyob rau hauv chaw ua haujlwm horticulture tau pom cov khoom siv muaj zog lossis cov khoom siv ntawm kev nqis peev ntau, thiab kev nqis peev ib zaug yog loj. Cov teeb ntxiv uas yuav tsum muaj ntawm ntau cov qoob loo nyob rau hauv cov kev sib txawv ib puag ncig, lub sij hawm loj hlob yuav ua rau muaj ntau yam teeb meem ntawm kev lag luam loj hlob.

Txawm li cas los xij, nrog kev nce qib thiab kev txhim kho thev naus laus zis thiab txo ntawm cov nqi loj hlob, siv dav siv dav dav hauv kev ua haujlwm horticulture. Nyob rau tib lub sijhawm, kev txhim kho thiab kev nce qib ntawm LED kev loj hlob ntawm kev loj hlob ntawm kev loj hlob ntawm cov neeg ua liaj ua teb kom tau raws li cov neeg siv ua liaj ua teb